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package cn.jhelper.unit05.demo;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;



/**
 *
 * @author Administrator
 */
public class Notices {

    public String getTodayName(){
        Date date = new Date();
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
        String dateString = formatter.format(date);
        return dateString;
                
    }
   public void  getTodayNotices() throws FileNotFoundException, IOException{
        File file = new File("notices/"+getTodayName()+".txt");
        if (file.exists()) {
        FileReader f = new FileReader(file);
        BufferedReader br = new BufferedReader(f);
        String temp = null;
        while((temp=br.readLine())!=null){
            System.out.println(temp);
        }
       }else{
            System.out.println("今天没有特别要提醒的事情。");
        }
        
   }
 
    public String getTomorrowName(){
        Date date = new Date();
        Calendar calendar = new GregorianCalendar();
        calendar.setTime(date);        
        calendar.add(calendar.DATE, 1);
        date = calendar.getTime();
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
        String dateString = formatter.format(date);
        return dateString;
    }
    
    
   
    
    public boolean setTomorrowNotices(String notice) throws IOException{
        
       File file = new File("notice");
        if (!file.exists()) {
            file.mkdir();
        }
       file = new File("notice/"+getTomorrowName()+".txt");
        if (!file.exists()) {
            file.createNewFile();
        }
       FileOutputStream f = new  FileOutputStream(file,true);
       PrintWriter p = new PrintWriter(f,true);
       p.println(notice);
        System.out.println("成功添加一条明天的备忘信息");
        return true;
    }
    public static void main(String[] args) throws IOException {
       Notices n = new Notices();
       String dateString = n.getTodayName();
       System.out.println(dateString);
       String tomorrowString = n.getTomorrowName();
       System.out.println(tomorrowString);
       n.setTomorrowNotices("12点吃饭，1点升级，3点魔兽争霸");
       n.setTomorrowNotices("晚上通宵排队杀boss");
       
       
    }
    
    
}